Silicone defoamer and silicone surfactant
As we all know, organosilicon defoamer is a common surfactant, so what is the difference between organosilicon defoamer and organosilicon surfactant?
1. Surfactants are substances that can significantly change (usually reduce) the surface tension of liquids or the interfacial tension between two phases. Surfactant molecules contain hydrophilic and hydrophobic components, which tend to concentrate on the interface between the liquid and the other phase in the liquid, forming thin molecular membranes to reduce the tension, thus occurring wetting, emulsifying, dispersing, foaming and other effects. There are cationic, anionic and amphoteric surfactants, which have a wide range of uses.
2. Organosilicon is usually referred to as polysiloxane or polysiloxane or polysiloxane products. Strictly speaking, compounds containing Si-C bonds are called organosilicon.
3. It is widely used as foaming agent for polyurethane foam plastics, as well as as as as additives for demoulding, lubrication, defoaming, antistatic fabric finishing and demulsifier for crude oil.
4. Silicone defoamer is mainly composed of silicone oil and silicone. Silicone oil is a non-volatile oily liquid at room temperature, insoluble in water, animal and vegetable oils and mineral oils, or has low solubility. It can withstand both high temperature and low temperature. Chemical performance is inert, physical performance is stable, no biological activity.
The above is the introduction of silicone defoamer and silicone surfactant. I hope it will be helpful to you.